Life Changes. Variation. DNA

Life Changes. Variation. DNA Home ϘSearch Help us ? Help < Prev + More > Next X Close
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The chromosomes are very long strings of DNA.
DNA is a bit like a recipe book.
A recipe book is a book of instructions.
You can have different instructions.

There are different instructions for making chocolate cakes and for lemon cakes,
and different instructions for making pecan pies or for fried noodles.




In the DNA of the ladybug,
there are instructions for making the red wing-covers
and instructions for making the black spots.

Ladybugs with different spots have different instructions in their DNA.

Variations in living things are there because of variations in their DNA.